用20 Gy 、30Gy 和40Gy 60Co γ射线照射黄瓜种子,用10Gy 、20 Gy 和40Gy 剂量照射番茄种子,在停照后6 、12 、24 、48 和72h 测量干种子和萌动种子超弱发光强度。结果表明,在低剂量辐照范围内,超弱发光强度随辐照剂量增大而增大,种子萌动期发光强度大于干种子,经10Gy 处理的番茄种子发光强度一直高于其它处理及对照组。 The cucumber seeds were irradiated with 20 Gy, 30 Gy and 40 Gy 60Co γ-rays, and the seeds of tomato were irradiated with doses of 10Gy, 20 Gy and 40Gy. The ultraweak luminescence intensity of dried seeds and germinated seeds were measured at 6, 12, 24, 48 and 72 h after the suspension. The results showed that the ultraweak luminescence intensity increased with the increase of radiation dose in the range of low dose radiation, and the light intensity of seed germination phase was higher than that of dry seeds. The luminescence intensity of 10Gy tomato seed was always higher than that of other treatments and control group .